Cosmetic lotion



United States Patent r p r 2,898,269 -Paten te.d Aug.=4,,'1959 signor toDehydag, DeutscheHydrierwerke G.m.li.H.,

Dusseldorf, Germany No Drawing. Application January 14, 1954 Serial No.404,121

Claims priority, application Germany January 22, 1953 3 Claims. (Cl.167-90) The present invention relates to cosmetic preparations.

It has been discovered that vary valuable preparations for cosmeticpurposes can be obtained by the incorporation, in a base, of highermolecular branched primary aliphatic alcohols or a mixture of suchalcohols. These may for instance be obtained by condensing aliphaticalcohols in the presence of an alkali according to the Guerbet reaction(M. Guerbet, Compt. rend. 128, 511 (1899)).

These alcohols are distinguished by having a considerably lowerturbidity point than alcohols with a straight chain, that they areinsensitive to alkali, and that they are stable even upon long-timestorage, i.e. they do not exhibit any change in odor or any tendency torancidity. Consequently, the alcohols are adapted for the use assolvents for perfumes and other active substances, as bases forointments, as thickening agent in the production of cosmeticpreparations, and the like.

It is a further advantage that these compounds impart to preparationsmade therewith a particular suppleness and lubrication. They are capableof fixing the active substances and perfumes which are contained in thepreparations, more particularly after they have been applied to thebody.

In the preparation of the higher molecular branched alcohols I may startfrom natural or synthetic fatty acids with a chain length of C or over,preferably a chain length of C -C these are subjected to catalyticreduction which yields the corresponding straight-chain alcohols. Thelatter are then condensed in the presence of alkalies to thecorresponding branched alcohols. The condensation may be carried out ona single alcohol or a mixture of alcohols of difierent chain length. Inthis Way, a large variety of different products may be obtained, whichvary in consistency and turbidity point.

As examples for such alcohols, I may name the following: 2-ethylhexanol,2-butyloctanol, 2-hexyldecanol, 2-octyldodecanol, 2-decyldodecano1, Zhexyloctadecanol, or the like, or mixtures thereof. Accordingly thealkyl group in the 2 position may vary from ethyl-2 carbon atoms, todecyl-lO carbon atoms in the primary aliphatic chain varying upwardsfrom hexanol-6 carbon atoms.

Another method for obtaining higher molecular branched primary alcoholsconsists for instance in converting higher molecular polymer olefins,such as polymerization products of propylene, isobutylene and the like,into primary alcohols by way of oxosynthesis.

The cosmetic preparations to which the branched alcohols may be added,include soap preparations for cosmetic purposes, such as toilet soap,shaving preparations, hair lotions, hair shampoos, and the like; otherprepara tions for grooming the hair, such as lotions, oils, fixatives,dyeing preparations, permanent wave preparations, depilatories, toiletwater, after-shave lotion, skin oils and creams, ointments of all kinds,deodorants, insect repellents, and so on.

The amounts in which the branched alcohols may be used in the abovedescribed cosmetic preparations, depend largely on the respective fieldof application. In general, amounts from 0.5 to35% will be used, in skincreams and ointments from --30%, in shampoos for instance 0.5-5%, inshaving sticks or creams 1-20%, in permanent wave preparations, moreparticularly in setting solutions, 05-10%.

It is possible to add the higher molecular branched alcohols to thecosmetic preparations while compounding the same; however, they may alsobe added to the finished cos rnetic preparations.

The invention will'now bede'scribed' in a number or examples, butit'should he'understood that these are given by way of illustration andnot of limitation and that many ,changes in the details ma be made.without departing from the s'pi'ritof the invention.

The parts are by weight.

Example 1 Example 3 Skin oil:

% parafiin oil almond oil 69% 2-butyloctadecanol 1% perfume Example 4Powder:

50% talcum kaolin 5% magnesium stearate 1% zinc oxide 4%2-decyldodecanol Example 5 Hair oil:

% 2-hexyldecanol 30% parafiin oil 20% isopropyl alcohol 0.5% perfumeExample 6 Hair oil:

10% Z-hexyldecanol paraffin oil 30% isopropylalcohol 0.5 perfume What Iclaim is:

1. An aqueous liquid cosmetic lotion comprising (1) a cosmetic softeningliquid selected from the group consisting of paraffin oil, almond oiland glycerol; (2) a detergent material selected from the groupconsisting of triethanolamine stearate and a sodium alkyl sulfate havingfrom 14 to 18 carbon atoms in the alkyl groupof said sulfate; (3) water;(4) a fixative providing a storage stable lotion resistant to alkali andto change of odor or' rancidity on standing, said fixative consisting ofa 2 alkyl subsututed primary aliphatic alcohol having from 3. 6 to 18carbon atoms in the aliphatic hydrocarbon chain of said primary alcohol,said alkyl group in the 2 position having from 2 to 10 carbon atoms.

2. The cosmetic lotion of claim 1 in which said soften ing liquid isglycerol in amount of 7% of the total weight of the lotion, saiddetergent material is sodium alkyl sulfate in an amount of 10% by weightof said lotion, and said fixative is 2-decyldodecanol in an amount of 7%by weight of said lotion.

3. The cosmetic lotion of claim 2 containing a small amount of perfume.

References Cited in the file of this patent UNITED STATES PATENTS2,609,397 Gresham Sept. 2, 1952 FOREIGN PATENTS 874,751 France June 25,1940 476,261 Germany May 13, 1929 OTHER REFERENCES Gregory: Uses andApplications of Chem. and Related Materials, Reinhold Pub. Co.', N.Y.,1939, vol. 1, pp. 164, 165; vol. 2, 1944, pp. 236, 237.

Wertheim: Textbook of Organic Chem., Blakiston Co., Phi1., 2nd ed.,1945, p. '107.

Goodman: 100 Dermatologic Formulas, Med. Lay Press, N.Y., 1949, p. 35. H

Spalton: Pharm. Emulsions, The Chemist and Druggist, London, 1950, pp.12, 13.

J. Am. Pharm. Asso., vol. 38, 1949, pp. 283-286.

Mastagli: Chem. Abst., vol. 33, 1939, p. 1292.

Mfg. Chem., April 1935, p. 129.

1. AN AQUEOUS LIQUID COMESTIC LOTION COMPRISING (1) A COSMETIC SOFTENINGLIQUID SELECTED FROM THE GROUP CONSISTING OF PARAFFIN OIL, ALMOND OILAND GLYCEROL; (2) A DETERGENT MATERIAL SELECTED FROM THE GROUPCONSISTING OF TRIETHANOLAMINE STEARATE AND A SODIUM SLKYL SULFATE HAVINGFROM 14 TO 18 CARBON ATOMS IN THE ALKYL GROUP OF SAID SULFATE; (3)WATER; (4) A FIXATIVE PROVIDING A STORAGE STABLE LOTION RESISTANT TOALKALI AND TO CHANGE OF ODOR OR RANCIDITY ON STANDING, SAID FIXATIVECONSISTING OF A 2 ALKYL SUBSTITUTED PRIMARY ALIPHATIC ALCOHOL HAVINGFROM 6 TO 18 CARBON ATOMS IN THE ALIPHATIC HYDROCARBON CHAIN OF SAIDPRIMARY ALCOHOL, SAID ALKYL GROUP IN THE 2 POSITION HAVING FROM 2 TO 10CARBON ATOMS.